Human Anatomy and Physiology: Blood

What percentage of our blood is plasma?

• 90%

• 55%

• 45%

• 65%

Blood reticulocyte counts provide information regarding ________.

• rate of erythrocyte formation

• rate of platelet formation

• clotting ability of the blood

• WBC ability to defend the body against disease

Tags

NGSS.HS-LS1-4

Which of the following is NOT a functional characteristic of WBCs?

• granulosis

• diapedesis

• ameboid motion

• positive chemotaxis

A person exhibiting suppression of immunity, clotting disorder, and low oxygen carrying capacity is likely suffering which of the following?

• iron deficiency anemia

• aplastic anemia

• pernicious anemia

• hemorrhagic anemia

What organ in the body regulates erythrocyte production?

• kidney

• pancreas

• liver

• brain

A lack of intrinsic factor, leading to a deficiency of vitamin B12 and causing an appearance of large pale cells called macrocytes, is characteristic of ________.

• polycythemia

• aplastic anemia

• pernicious anemia

• sickle-cell anemia

Which of the following is characteristic of all leukocytes?

• They are phagocytic.

• They are the most numerous of the formed elements in blood.

• They are nucleated.

• They have cytoplasmic granules.

Which of the following is a functional characteristic of blood?

• sticky, opaque fluid

• pH 7.25- 7.35

• about 5 times more viscous than water

• oxygen transportation

The most abundant plasma protein is _____.

• heparin

• albumin

• globulin

• fibrinogen

Which organ produces most of the plasma proteins?

• red bone marrow

• Liver

• Kidney

• Thymus

Answer explanation

The liver is the organ that produces most of the plasma proteins. The reticuloendothelial cells of the liver are in charge of plasma protein synthesis in adults. The liver produces plasma proteins, such as albumins and fibrinogen, from amino acids.